Forrest County, MS Shrink-Swell Risk

Forrest County's SSURGO shrink-swell reading

Low

In Forrest County, MS, 87.6% of the surveyed soil carries a "Low" shrink-swell rating, 1.74% linear extensibility on average. That's as favorable a county-level reading as this dataset produces - standard foundation practice, pending one lot's own geotechnical report.

Before you rely on this for one address

Forrest County's reading is an average across the whole county, not a promise about any one lot inside it. A site-specific soil report, usually $1,000-$5,000, is what an engineer would actually pull before designing a foundation on a lot in Forrest County.

Budgeting for Forrest County, MS

Forrest County's soil reading points toward standard foundation practice as the likely outcome, not the exception. A geotechnical report runs $1,000-$5,000, typically around $2,700. Foundation repair, if a specific lot turns out to differ from the county average, runs $5,000-$15,000.

Forrest County's rank among Mississippi counties

Among the 3,085 rated counties on this site, Forrest County, MS ranks 2,227 most-constrained nationally, and 60 of 82 within Mississippi. Forrest County covers 466 square miles and counts 78,435 residents.

Before you act on this

Orleans Parish, LA carries this site's most-constrained reading. Valencia County, NM and Cleburne County, AL are worth a look for comparison.

How this reading is built, and its real limits · Moisture management: the cheap fix that works on any soil

Elsewhere in Mississippi

Every county in Mississippi is on this site, including Jefferson County, MS and Alcorn County, MS. The full underlying dataset is downloadable directly, one row per county.